Slugging or nailing machine.



frq z esses:

J w! 971- M,

M. T. DENNE.

SLUGGING 0E NAILING MACHINE. APPLICATION FILED 00122, 1907.

COLUMBIA PLANnnQAPH c0" WASHINGTON. n. c.

Patented June 11,1912.

5 SHEETS-SHEET 1.

vM. T. DENNE.

SLUGGING 0R NAILING MACHINE.

APPLICATION FILED 001222, 1907.

6 BHEETS SHEE-T 2.

Patented June 11,1912.

COLUMBIA PLANOGRAVII CO..\VASHINGTON. n. c.

M. T. DBNNE. SLUGGING 0B NAILING MACHINE. A-PPLIOATION FILED 00T.22, 1907.

1,029,108, Patented June 1 1, 1912 6 SHEETS-SHEET 4.

FIG. 5;

COLUMBIA PLANOGIAPH (10.,WASHINGTON. D. c.

M. T. DENNE.

SLUGGING OR NAILING MACHINE.

APPLIOATION FILED 00122, 1907.

Patented June 11, 1912.

5 SHEETS-SHEET 5.

COLUMBIA PLANOGRAPH CO.,WASHINGTON. D c.

U TED STATES PATENT OFFICE.

MARK THOMAS DENNE, OF RUSHDEN, ENGLAND.

SLUGGING OB. NAILING MACHINE.

Specification of Letters Patent.

Application filed. October 22, 1907. Serial No. 398,589.

To all whom it may concern:

Be it known that I, MARK THOMAS DENNE, a subject of the King of Great Britain and Ireland, residing at Rushden, Northamptonshire, England, have invented new and useful Improvements in slugging cally under a driver, the stock being fed forward intermittently by'means of an awl which makes the holes to receive the slugs. The nature of the improvement is fully set forth in the following description taken in connection with the accompanying drawings and then more particularly pointe out in the appended claims.

Referring to the accompanying drawings:Figure 1 is a side elevational view of the working head with its operating mechanism, Fig. 2 is a side elevational view, partly in section, of means for auto matieally operating the horn. Fig. 3 is a plan view of the wire feeding and nipping or cut-ting off mechanism. Fig. 4 is a plan view of the means for impart-ing vertical and horizontal movements to the awl. Fig. 5 is a front view of the working head. 6 is a right hand side elevational view of the means for imparting vertical and horizontal movements to the awl, and Figs. '7, 8 and 9 are views showing the slug carrier or tumbler and the means for operating same.

In said drawings 1 indicates a pillar of suitable construction to support the head 2- of the machine, the said pillar and head having several bearings 3 to carry a vertical driving shaft 4; the upper end of which has fixed on its cams, 5, 6 and O to operate the working parts carried by or on said head and the lower end of which shaft has on it cam 7 to operate the horn to permit the Flg.

(8*) has on its spindle a toothed wheel 9 which is in gear with a similar toothed wheel 9 provided with a ratchet wheel 10 withwhich a pawl 11' carried by a radius arm' 11 engages. Reciprocating motion is imparted to the arm 11 by a lever 13 pivotally mounted at 13 and deriving motion from a camgroove (not shown) in the lower face of the cam 6 the said lever 13 and arm 11 being connected by a link 12, the connection on 13 being adjustable as will be un- Patented June 11, 1912.

derstood from Figs. 1 and 3 so that the throw of the arm 11 and consequently the lengthof wire fed may be regulated as desired.

As the wire is fed" forward by the feed rolls it passes between a pair of levers 16 pivotally supported at 17 and thence between a pair of cutters 16 fixed to the ends of said levers by wedges 18. The opposite ends of the levers 16 are provided with rolls 19 which engage with the cam C so that at the proper time the levers will be operated t p cut off a length of wire to form a nail or s ug. cut oif to form the slug enters a carrier'20 (shown separately in side and in end elevation in Fig. 9) and, the slug having been cut off the carrier is rotated within a shell or equivalent 21 until said slug is vertically undera driver 23. The movement at the correct time of the carrier in the manner described is obtainedby a lever 72 pivoted at and having a roll 7 3 in engagement with the'cam 6'the other or free. end of the said lever having a rod 72 attached to it whose other end is toothed and engages av toothed sleeve 72 adapted to receive the shank 20 of the carrier 20 and with which it is so connected that it rotates therewith. The driver 23 is attached to a driver bar 2& receiving motion from a crank pin 25 on a crank disk 25 through a link 25 the crank disk being'mounted on a shaft 25 deriving motion from the driving shaft through gear wheels 26. The driver 23 is thus actuated positively. It will be seen that when the wire is fed forward by the-feed rolls 8, 8 the carrier 20 must be horizontal and the slug having been cut ofi said carrier is moved as described through an angle of about 90 to bring it to the necessary position to permit the driver entering the aperture in the carrier to drive the slug.

A horn 63 having a suitable head is provided to support the work in the usual man- The end of the wire which is to be time to engage, a trip plate 67 serving tonormally hold said pawl out of' engagement. race 71 in the cam 7 so that the pawl 68 is reciprocated in a vertical direction and to the same extent for every revolution of the driving shaft. It willbe seen that the pawl 68 will depress the horn an equal extent at every revolution of the driving shaft no matter what the thickness of the work may be as variations in thickness will simply permit the horn and: consequently also the I toothed rack 65 to riseto a greater or less extent. 7

To feed the work forward I provide an awl 27 carried! on an arm 27 of a vertical bar 27* having bearings 29, 29 engaging studs 29 on the frame in such: a manner that said vertical bar 27 may be reciprocated on said studs and the arm 27 and awl 27 receive the necessary vertical move ment. The reciprocation as described of the bar 27 is obtained as follows :At the upper end or the machine head I suitably support a horizontal spindle 31 on which I pivotally mount a rocking piece 31' having a horizontal spindle 32 one end of 7 which has a cam roll and engages the cam groove 30 of cam. 5 and the other end of which: engages a projecting boss or lug 33 of the bearing 29 sothat the rotation of the cam 5 will raise and lower 29 and con- 'sequently also awl 27.

For the purpose of imparting the necessary reciprocal movement to the awl I cause the bar27 't'o rotate or rock to a slight extent on the studs 29 which rocking movement I- obtain by the following means :I

suitably support a vertical spindle '38 in close proximity to the cam 5 and fixed to its upper end a lever 87 having a cam roll to engage aca-m groove (not shown the upper face of cam 5. To the lower end of said spindle 38 I fix an arm or lever 89 whose free end I provide with a stud 39 on which I mount an oblong or square block 40 said block being capable of rotating to a sufficient extent on said stud, I also pro- The lever 69 is actuated from a cam .vide the bar 27 with an arm or extension 41 having the form more or less of a saddle piece to fit over the block 40 as will be understood from Figs. 4 and 6. The saddle piece or slide 41 is adjustable being adapted to be clamped in the desired position by a screw 42 and it will be seen that by slightly altering the angle at'which the said slide is set the amount of throw or reciprocation of the awl will also be altered. To

adjust the distance from the edge at which the slugs are to be driven into the sole I have shown an edge gage which has been made the subject of a divisional application and accordingly is not described here.

What I claim as my invention and desire u ori 'ht' bar to which the awl is ri idly connected, vertically alined bearings attached to said bar, stationary, vertical studs on which said bearings slide, and about which studs the bar can be rocked, means to reciprocate the bar to cause said awl to pene- 't-rat e the stock and to be withdrawn therefrom alternately, and means to rock said bar positively and intermittingly upon the vertical studs as fulcra, to thereby impart to said awl a feed 'ing movement and a return movement.

2. The combination, in a slugging or nailing machine in which the slugs are cut from a continuous length of wire and presented to a driver by a rotatable carrier, of an up right bar, an awl rigidly connected therewith, means to sustain said bar at its upper and lower ends and to permit vertical reciprocation thereof and also a rocking movement of said bar, means to reciprocate the bar positively to thereby move the awl into and out of the stock, and other means to rock the bar when in its depressed position andthereby cause the awl to feed the work, said latter means rocking the baroppositely when in its elevated position to retract the awl into starting position. i

In testimony whereof I have signed my a name to this specification in the presence of two subscribingwitnesses;,

MARK THOMAS DENNIS.

Witnesses: I i I WALTER W. BALL F. H001). d

Copies of this patent may be. obtained for five cents each, byaddressing the Commissioner of IPatents,

Washington, D. 0. 

